The Hyaluronic Acid 3 Serum

Product Description

COSRX The Hyaluronic Acid 3 Serum is a lightweight, fast-absorbing serum formulated to deliver deep, long-lasting hydration. Its non-greasy texture glides smoothly onto skin and sinks in quickly, leaving a soft, plumped, and refreshed finish. It’s especially suited for dry, dehydrated, or sensitive skin, and works well as a hydration booster — ideal for restoring skin moisture balance and giving skin a healthy, supple feel.

Ingredients

Key / Active Components

• Sodium Hyaluronate (Hyaluronic Acid ~ 3%) — attracts and retains moisture, helping skin stay hydrated, plump, and smooth.
  
• Natural Moisturizing Factor (Amino Acid Complex) — helps support and strengthen the skin’s moisture barrier, protecting against dryness and dehydration.
  
• Ceramide NP (with other barrier lipids such as cholesterol, fatty acids, phytosphingosine) — reinforces the skin barrier and helps shield skin from external stressors, improving resilience and moisture retention.
  

Full-Featured Ingredient List (major components)
 Water, Butylene Glycol, Propanediol, Glycerin, Sodium Hyaluronate (3%), Pentylene Glycol, 1,2-Hexanediol, Diethoxyethyl Succinate, Sodium Polyacryloyldimethyl Taurate, Betaine, Xanthan Gum, Dimethicone, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Sodium PCA, Sodium Lactate, PCA, Glyceryl Acrylate/Acrylic Acid Copolymer, Hydrogenated Lecithin, Ethylhexylglycerin, Amino acids (Serine, Alanine, Glycine, Glutamic Acid, etc.), Sodium Phytate, Sorbitan Isostearate, PVM/MA Copolymer, Ceramide NP, Cholesterol, Caprylic/Capric Triglyceride, Phytosphingosine, Stearic Acid, Oleic Acid, Tocopherol (Vitamin E), plus other humectants, emollients, and stabilizers.

How to Use

1. After cleansing (and toning, if part of your routine), apply a few drops of the serum onto your face (and neck if desired).
   
2. Gently pat or press the serum into the skin with your fingertips until fully absorbed.
   
3. Follow with your regular moisturizer (and sunscreen in the daytime).
   
4. Use in the serum step — morning and/or night, depending on your skin’s hydration needs.
   

Benefits

• Provides deep, multi-layer hydration that penetrates into the skin, leaving it soft, supple, and comfortably hydrated.
  
• Improves skin texture and smoothness, helping reduce roughness or dry, flaky patches.
  
• Helps restore and strengthen the skin barrier thanks to amino acids and ceramides — beneficial if skin is stressed, sensitive or prone to dehydration.
  
• Plumps and firms the skin by restoring moisture, which can minimize the appearance of fine dryness lines and improve overall elasticity.
  

Lightweight and non-sticky, making it suitable for layering under moisturizer, sunscreen, or makeup — ideal for all skin types, including sensitive, dry, and combination.